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Problems and Solutions for Processing Twist Drill Bit
1. The accuracy of the hole is high and no suitable twist drill bit can be found. The high accuracy of hole is a hard problem. The only way to solve it is to customize the proper cutting edge. Of course, we need to find a fast twist drill bit manufacturer. 2. Is the drill bit easy to be blackened...Read more -
Three Main Materials of Hole-Cutting Tool Twist Drill Bit
The material selection of twist drill bit is mainly divided into three types (high speed steel, cobalt containing high speed steel and hard alloy). High speed steel twist drill bit: since 1910, high speed steel has been used as cutting tool for more than 1 century. It is the most widely used and ...Read more -
Five most Commonly Used Material of Twist Drill Bit
For twist drill bit, coating has three main functions, the first wear-resistant, second lubrication, third is conducive to smooth chip removal, the main advantage is durable. The first kind of coating is called “no coating”, which is the natural cutter. The drill bit without coating i...Read more -
Relationship between Geometric Angle and Precision of Twist Drill Bit Ⅲ
5. Transverse edge angle The cross blade is a cutting edge perpendicular to the axis of twist drill bit. The angle of the cutting edge includes the oblique angle of the transverse blade, the front edge of the transverse blade and the back angle of the transverse blade. (1) The oblique angle of th...Read more -
Relationship between Geometric Angle and Precision of Twist Drill Bit Ⅱ
3. Posterior angle The back angle of any point of the cutting edge is the included angle between the cutting plane and the back face of the point. The back angle of a bit is not measured in the main section, but in the assumed working plane (feed section). In the process of drilling, this back an...Read more -
Relationship between Geometric Angle and Precision of Twist Drill Bit Ⅰ
The geometric angle of twist drill bit: 1. Apex angle 2 Φ It is the included angle of the projection of the two main cutting edges in the middle section. The smaller the apex angle is, the longer the main cutting edge is, the load on the unit cutting edge is reduced, and the axial force is reduce...Read more -
Commonly Used Materials of Twist Drill Bit
Speaking of the material of twist drill bit, I believe that the first thing you would think of is high-speed steel, white steel, cobalt containing high-speed steel, and the second one that you might think of is the whole cemented carbide. Yes, alloy and high-speed steel are the two most commonly ...Read more -
Difference between Tungsten Twist Drill Bit and Alloyed Twist Drill Bit
Cemented carbide is one of the common materials used in producing cutting tools. For twist drill bit, cemented carbide and high speed steel are two common used materials. But when it comes to tungsten carbide twist drill bit and alloyed twist drill bit, many people will have some unnecessary misu...Read more -
Maintenance of Percussive Electric Drill Bit
When using the impact electric drill, maintenance staff often encounters the slipping, breaking and squeaking of the impact electric drill. We summarized the following precautions: 1. After the bit is used, it shall be checked immediately for damage, passivation and other defects. If any, it shal...Read more -
Analysis of Twist Drill’s Knowledge and Methods Ⅱ
Pithy formula 2: “drill the shaft obliquely to release the sharp angle.” This refers to the positional relationship between the axis line of the drill bit and the surface of the grinding wheel. “Sharp angle” is half of the top angle 118 ° ± 2O, which is about 60 °. This po...Read more -
Analysis of Twist Drill’s Knowledge and Methods Ⅰ
Twist drill is a tool for drilling the round hole of a work-piece by means of its rotary cutting with a fixed axis. Spiral grooves have 2 grooves, 3 grooves or more, but 2 grooves are the most common. Twist drill bit can be used in manual and electric hand held drilling tools or drilling machines...Read more -
Causes of Wear of Alloy Saw BladeⅡ
Reason 3: Whether the Cooling of the Saw Blade is Done Well The essence of alloy saw blade is a kind of consumable. The speed of consumption of saw blade in the process of use is determined by many factors. In addition to whether the operator using the saw blade according to the regulations, whet...Read more